Zig 0.17.0-dev (Split by item)

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len

Iterate over all nodes, returning the count.

This operation is O(N). Consider tracking the length separately rather than computing it.

DoublyLinkedList.len

pub fn len(list: DoublyLinkedList) usize

File

lib/std/DoublyLinkedList.zig:151

Code

pub fn len(list: DoublyLinkedList) usize {
    var count: usize = 0;
    var it: ?*const Node = list.first;
    while (it) |n| : (it = n.next) count += 1;
    return count;
}